DOI: 10.1007/s11069-021-04703-y
论文题名: Event-based and continous flood modeling in Zijinguan watershed, Northern China
作者: Katwal R. ; Li J. ; Zhang T. ; Hu C. ; Rafique M.A. ; Zheng Y.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 108, 期: 1 起始页码: 733
结束页码: 753
语种: 英语
中文关键词: Calibration and validation
; HEC-HMS
; Model performance
; Satellite data
; SCS-CN
; SMA
英文摘要: Hydrological models are a conceptual representation of a simplified hydrological cycle. The hydrological cycle is the water cycle that circulates water from the land surface to the atmosphere and back again to the land. With the use of Hydrologic Engineering Center-Hydrologic Modeling System (HEC-HMS), an event-based model and a continous hydrological model were established in Zijinguan watershed of Daqinghe River basin. To study the loss methods provided by HEC-HMS and its appropriateness for model fitting, is the main objective of this paper. The watershed was delineated with HEC-GeoHMS in ArcGIS, and its properties were extracted from a Digital Elevation Model (DEM) of 30 m × 30 m. The HEC-HMS includes a soil conservation service curve number (SCS-CN) method and a soil moisture calculation (SMA) loss method, simulating the event and continuous runoff, respectively. SCS Unit hydrograph and Muskingum were used for flow routing. Specifically, eight rainfall events were selected for calibrating (6 events) and verifying (2 events) the event-based model. Similarly, for the continuous model the wet seasons of eight different years were used for calibration and verification. The calibrated parameters of the events model were used in the continuous model. The soil moisture and evapotranspiration data were decoded from the satellite data to set in the continuous model. The performance of SCS-CN and SMA models was compared. During the calibration period, the values of NSE, PEV and PEPF range from 0.605 to 0.744, 3.1 to 13.58%, and 11.104 to 27.72%, and during validation they are 0.527 to 0.634, 4.35% to 5.01%, and 13.66% to 27.88%, for SCS-CN model. For the SMA model, the values of NSE, PEV and PEPF during calibration range from 0.434 to 0.604, 2.879 to 34.326%, −4.831 to 57.48%, and during validation they are 0.094 to 0.624, −19.52% to −12.55%, and 40.213% to 50.15%. Overall, the performance of SCS-CN model is found more satisfactory than that of SMA model. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169117
Appears in Collections: 气候变化与战略
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作者单位: State Key Laboratory of Hydraulic Engineering, Simulation and Safety, Tianjin University, Tianjin, China; Hydrological and Water Resources, Survey Bureau of Hebei Province, Shijiazhuang, 050031, China
Recommended Citation:
Katwal R.,Li J.,Zhang T.,et al. Event-based and continous flood modeling in Zijinguan watershed, Northern China[J]. Natural Hazards,2021-01-01,108(1)